ABSTRACT
Quality Control, Quality Assurance, and Quality Systems The approach to quality has evolved over the last 25 years from quality control to quality assurance and now to quality systems. Quality control supports quality assurance and quality assurance programs support quality systems. Although each approach to quality remains an option to developers and manufacturers, it is the integrative and supportive aspects of quality control, quality assurance, and quality systems that provide the greatest opportu nity for affordable quality products.
